{"id":"catch-basin","version":"0.2.0","classification":{"uniformat":"G3030"},"names":["Catch basin"],"aliases":["CB","storm inlet"],"service_life":{"median_years":50,"range_years":[50,50],"range_basis":"source_spread"},"pm_tasks":[],"basis":[{"type":"public_document","life_type":"planning","title":"CNA e-Tool Estimated Useful Life Table","by":"U.S. Department of Housing and Urban Development","url":"https://www.hud.gov/sites/documents/eul_for_cna_e_tool.pdf","page":1,"code":"HUD CNA 3.2.2.1","label":"Catch basins, inlets, culverts","years":50,"note":"Same life for family and elderly properties. US multifamily housing. HUD's row also covers inlets and culverts. HUD's row is for site work at US multifamily properties, not municipal networks."},{"type":"public_document","life_type":"accounting","title":"Grey Highlands: By-law No. 2026-052, Tangible Capital Asset Policy A09-F-03","url":"https://greyhighlands.civicweb.net/document/406218/","page":10,"label":"Catch Basins","years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Kenora: AF-6-1 Tangible Capital Asset Policy (By-law 34-2026)","url":"https://listview.kenora.ca/Files/City%20Policy%20Manual/Administration%20and%20Finance/AF-6-1%20Tangible%20Capital%20Asset.pdf","page":16,"label":"Storm Sewers - Catch Basins","years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Prince Edward: FIN-12 Tangible Capital Assets Policy","url":"https://www.thecounty.ca/wp-content/uploads/2023/09/FIN-12-Tangible-Capital-Asset-Policy.pdf","page":34,"label":"Storm - Catch basins","years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Sarnia: Finance-04 Tangible Capital Asset Policy, Attachment No. 1: TCA Policy Appendix A","url":"https://www.sarnia.ca/app/uploads/2020/07/Finance-04-Tangible-Capital-Asset-Policy-Attachment-No.-1-TCA-Policy-Appendix-A.pdf","page":2,"label":"Catch Basins","years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Severn: By-law 2019-04, Corporate Policy Manual: Tangible Capital Asset Policy, Useful Life Guide","url":"https://severn.civicweb.net/document/10628/","page":402,"label":"Infrastructure - Water & Sewer - Catch Basins","years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."},{"type":"public_document","life_type":"accounting","title":"Severn: By-law 2019-04, Corporate Policy Manual: Tangible Capital Asset Policy, Useful Life Guide","url":"https://severn.civicweb.net/document/10628/","page":402,"label":"Infrastructure - Water & Sewer - Double Catch Basins","years":50,"note":"Capital asset policy (amortization period). Approved on text check: the label and value were found on the cited page."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["HUD gives planning lives for US multifamily housing; the municipal rows are Ontario accounting lives. Neither is observed replacement data.","No preventive maintenance tasks are sourced yet."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-21","canonical_url":"https://unfinished.one/c/catch-basin","versioned_url":"https://unfinished.one/c/catch-basin/v/0.2.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Catch basin, v0.2.0. https://unfinished.one/c/catch-basin/v/0.2.0"}